JP2016211351A - Rolling screen - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rolling screen capable of maintaining a quality of a shielding material.SOLUTION: A rolling screen 1 according to this invention comprises: a roll-up pipe 9, which suspends and supports a screen 4 so as to roll up the screen on indoor side; a fitting frame 2, which supports the screen 4 on outdoor side; an operation unit 6, which has an operation pulley 10 on which an endless operation cord 3 is hung so as to rotate the roll-up pipe 9 and swings like a pendulum when operated by the endless operation cord 3; and a movable fin 7, which places a distance between the double shielding materials (screen 4) according to the swinging like a pendulum. The operation unit 6 guides the endless operation cord 3 to outdoor side of vertical line from the position where the cord is hung on the operation pulley 10 when the operation unit does not swing like a pendulum.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a roll screen having a shielding material.

  2. Description of the Related Art Conventionally, as a roll screen having a shielding material, for example, there is a roll screen in which the amount of light collected in a room can be adjusted by relatively moving a double superimposed screen in the vertical direction.

  The screen in such a roll screen has a transmission portion that partially transmits light and a light-shielding portion that blocks light alternately formed in a stripe pattern, and is suspended and supported in a state where the screen is overlapped in a double manner. Yes. Then, by operating the operating means, the front and back screens are moved relative to each other in the vertical direction, and the amount of light collected can be adjusted by adjusting the overlap between the transmission part and the light shielding part.

  For example, a configuration is disclosed in which a screen can be smoothly raised and lowered while maintaining a double screen in a close contact state (see, for example, Patent Document 1).

  By the way, in order to prevent light leakage from the gap between the winding shaft (that is, the winding pipe) for winding the screen and the lower surface of the frame body that supports the winding pipe, the lower surface of the frame body is used. There is disclosed a technique of providing a gap preventing member that supports an end edge so as to be rotatable and hangs down on a peripheral surface of a take-up pipe (see, for example, Patent Document 2).

  In addition, in order to prevent light leakage from the gap between the winding pipe that winds up the screen and the lower surface of the frame that supports the winding pipe, the end is supported on the front side of the frame so that it can be slid. A technique for providing a gap preventing member is disclosed (for example, see Patent Document 3).

Japanese Patent No. 3311994 Japanese Utility Model Publication No. 4-48316 JP 2013-136900 A

  In the technique disclosed in Patent Document 1, since the double screen is maintained in a close contact state, there is a possibility that light may leak from the gap between the screens when the transmissive portion and the light shielding portion of the screen are made to coincide with each other. It is effective in that it disappears. However, with this technique, there is a problem that the screen may be damaged because the double screen closely contacts and relatively moves during the lifting operation.

  Further, not only when the double screen is suspended, but in a roll screen that suspends a single screen, a winding pipe that can wind or unwind the screen, and a frame that supports the winding pipe. Light leakage may occur between them. Therefore, as in Patent Documents 2 and 3, a light leakage prevention member for suppressing this light leakage is separately provided to be movably supported by the frame body, and its tip portion and the like are provided in contact with the winding pipe. There is also. However, if the light leakage prevention member is configured to contact the winding pipe in this manner, the light leakage prevention member may damage the screen due to the winding or unwinding of the screen by the winding pipe. It is also desirable to consider the safety of such movable light leakage prevention members.

  Further, as disclosed in Patent Document 1, by providing a face roller in the vicinity of the opening of a double screen weight member (weight bar), the lower end of the double screen is folded and smoothly moved. Although it can be configured, the weight member is enlarged, and there is room for improvement in terms of design.

  In view of the above problems, an object of the present invention is to provide a roll screen that can maintain the quality of a shielding material.

  One aspect of the roll screen according to the present invention is a roll screen having a double shielding material, which is a winding means for suspending and supporting one shielding material so as to be wound, and a fixing means for supporting the other shielding material. And an operation pulley on which an endless operation cord is wound so that the winding means can be rotated, and an operation means that performs a pendulum operation when operated by the endless operation cord; Shielding member interval adjusting means that operates so that the interval between the heavy shielding members is separated, and when the pendulum motion is not in operation, the operation unit moves the endless operation cord from the position where the operation pulley is engaged to the vertical line. It is characterized by being guided to the outdoor side rather than.

  In the roll screen according to one aspect of the present invention, the double shielding material is formed by folding a single screen.

  In the roll screen according to one aspect of the present invention, the double shielding material is formed such that the one shielding material is a single screen and the other shielding material is a light leakage prevention member. And

  Further, in the roll screen according to one aspect of the present invention, the exit of the operation cord hanging from the outdoor side of the operation means is opened from below from a horizontal line passing through the axial center of the operation pulley when the pendulum operation is not activated. It is characterized by that.

  In the roll screen according to one aspect of the present invention, the operation means includes a first cord guide portion for guiding an operation cord hanging from the operation pulley for winding, and an operation cord hanging from the operation pulley for rewinding. The second code guide unit and the second code guide unit are configured to guide the operation code through different guide routes.

  In the roll screen according to one aspect of the present invention, the shielding material interval adjusting means includes a movable fin that presses the other shielding material so that the interval between the double shielding materials is separated by a pendulum operation of the operation means. The base axis of the movable fin is fixed to the fixing means.

  In the roll screen according to one aspect of the present invention, the movable fin has a length sufficient to close a gap between the fixing means and the winding means.

  Further, in the roll screen according to one aspect of the present invention, the movable fin has a force point position due to a pendulum operation of the operation means by a detachable auxiliary member so as to change an acting force required for the pressing according to the length. It is configured to be adjustable.

  In the roll screen according to the aspect of the present invention, the first code guide portion and the second code guide portion are formed using a member that can be attached to and detached from the holding member. The present invention is characterized in that the right side operation and the left side operation on the winding means can be rearranged.

  Moreover, the roll screen of one aspect | mode by this invention WHEREIN: The said auxiliary member is comprised so that arrangement | positioning change is possible according to the said right side operation and left side operation.

  In the roll screen according to one aspect of the present invention, the operation cord includes a ball chain in which a plurality of ball portions are connected, and the first code guide portion and the second code guide portion are at least two continuous at a predetermined pitch. The two ball portions are configured to abut and be guided during the operation.

  Furthermore, the roll screen of the second aspect according to the present invention is a roll screen having a shielding material, the winding means for suspending and supporting the shielding material so as to be wound, and the fixing means for supporting the winding means, An operation pulley for hanging an endless operation cord so that the winding unit can be rotated is provided, and an operation unit that performs a pendulum operation and can be rotated according to the pendulum operation when operated by the endless operation cord A movable fin that is pivotally supported by the fixing means and that can block light leaked from a gap between the winding means and the fixing means; It is characterized by the fact that it is configured to guide the operation cord in the shape of the operation pulley to the outdoor side rather than on the vertical line.

  Furthermore, in the roll screen according to the third aspect of the present invention, the roll screen having a shielding material, a winding means for suspending and supporting the shielding material so as to be wound, and a fixing means for supporting the winding means, A movable fin capable of blocking light leaking from a gap between the winding means and the fixing means, and a fin cover is provided at each of both ends of the movable fin in the left-right direction. To do.

  Further, in the roll screen according to the third aspect of the present invention, there is provided an operation pulley on which an endless operation cord is hooked so that the winding means can be rotated, and an operation that performs a pendulum operation when operated by the endless operation cord The movable fin is further provided with a detachable auxiliary member capable of adjusting a power point position by a pendulum operation of the operation means.

  Moreover, the roll screen of the 3rd aspect by this invention WHEREIN: The said auxiliary member is comprised so that attachment or detachment is possible by fitting with the opening part of the fin cover provided in the both ends of the left-right direction of the said movable fin, respectively. It is characterized by.

  Furthermore, the roll screen of the fourth aspect according to the present invention is a roll screen having a shielding material, the winding means for suspending and supporting the shielding material so as to be wound, and the fixing means for supporting the winding means, An operation pulley for hanging an endless operation cord so that the winding means can be rotated; and an operation means that performs a pendulum operation when operated by the endless operation cord. The operation unit is configured to accommodate a plurality of code guide members capable of guiding the endless operation code through an asymmetric guide path.

  In the roll screen according to the fourth aspect of the present invention, the plurality of code guide members are configured as two code guide members, and the operation unit is configured of two members capable of accommodating the two code guide members. It is characterized by.

  In the roll screen according to each aspect of the present invention, the winding means suspends and supports one end of the screen formed by folding one screen by a weight member so that the screen can be wound. Supporting the end, a double shielding material is configured, and the lower end of the double shielding material is in non-contact with the weight member in the lower limit position, and the upper end of the double shielding material is They are in contact with each other or closer to the lower end.

  In the roll screen according to each aspect of the present invention, the winding means suspends and supports one end of the screen formed by folding one screen by a weight member so that the screen can be wound. The end of the movable fin is supported when a double shielding material is configured by supporting the end, and the upper end of the double shielding material contacts or approaches in a stationary state where the pendulum operation of the operation means is inactive. Is configured to abut against a shielding material supported by the fixing means obliquely above the winding means.

  According to the present invention, the double shielding material is reliably separated during the lifting operation, and the frictional force of the double shielding material is eliminated, or the relative movement is reduced, so that there is no possibility of damaging the shielding material. Further, when stationary, the distance between the double shielding materials can be close or in close contact with each other, and the light shielding property can be improved.

It is a front view which shows schematic structure of the roll screen of 1st Embodiment by this invention. It is a side see-through | perspective view which shows schematic structure of the roll screen of 1st Embodiment by this invention. It is a disassembled perspective view which shows schematic structure of the operation unit periphery in the roll screen of 1st Embodiment by this invention. It is a disassembled perspective view which shows the detailed structure of the operation unit in the roll screen of 1st Embodiment by this invention. (A), (b), (c) is operation | movement explanatory drawing of the operation unit in the roll screen of 1st Embodiment by this invention. (A), (b) is explanatory drawing of the operation unit in the roll screen of 1st Embodiment by this invention. (A), (b) is explanatory drawing explaining the left-right arrangement change of the operation unit in the roll screen of 1st Embodiment by this invention. (A), (b) is the exploded perspective view explaining the movable fin in the roll screen of 1st Embodiment by this invention, and its perspective view. (A), (b) is a perspective view which shows the partial structure which shows the structural example of the movable fin in the roll screen of 1st Embodiment by this invention, respectively. It is a side see-through | perspective view which shows schematic structure of the roll screen of 2nd Embodiment by this invention.

  Hereinafter, the roll screen 1 of each embodiment according to the present invention will be described with reference to the drawings. In addition, in the present specification, with respect to the front view of the roll screen 1 shown in FIG. 1, the upper direction and lower direction in the drawing are respectively upward (or upper) and downward (or lower) according to the hanging direction of the screen 4. The left direction in the figure is defined as the left side of the roll screen 1, and the right direction in the figure is defined as the right side of the roll screen 1. Further, in the example described below, with respect to the front view of the roll screen 1 shown in FIG. 1, the viewing side is the front side (or the indoor side), and the opposite side is the rear side (or the outdoor side). Is a direction perpendicular to the illustrated surface in the front view of FIG.

[First Embodiment]
(overall structure)
First, with reference to FIG.1 and FIG.2, the structure of the roll screen 1 of 1st Embodiment by this invention is demonstrated. FIG. 1 is a front view showing a schematic configuration of a roll screen 1 of a first embodiment according to the present invention, and FIG. 2 is a side perspective view showing a schematic configuration of the roll screen 1 of the first embodiment according to the present invention. .

  As shown in FIG. 1, the roll screen 1 of the present embodiment is installed with the upper end of the mounting frame 2 fixed to a mounting surface such as a ceiling surface via a bracket 8. Support members 2a and 2b are fixed to the left and right ends of the mounting frame 2, and a cylindrical winding pipe 9 is rotatably supported between the support members 2a and 2b by a fixed shaft 11 extending from the support members 2a and 2b. Is done.

  An operation unit 6 is provided at the right end of the winding pipe 9 so as to be rotatable relative to the winding pipe 9 and the support members 2a and 2b. An operation pulley 10 is accommodated in the operation unit 6, and an endless operation cord 3 hung around the operation pulley 10 is suspended. The winding pipe 9 can be rotated by operating the operation cord 3. The operation cord 3 is composed of an endless ball chain composed of a ball portion 3a and a chain portion 3b that are continuous at a predetermined pitch, and the surface of the operation pulley 10 has irregularities that are shaped to fit the ball portion 3a. Composed.

  The winding pipe 9 is attached to one side of the screen 4 so as to be able to wind, and is suspended from the winding pipe 9. The screen 4 is suspended from the winding pipe 9 and turned back through a weight bar 5 functioning as a weight member. The other side is attached to a fixing portion 22 (see FIG. 2) provided on the outdoor side end surface of the mounting frame 2 located above the winding pipe 9. As shown in FIG. 2, the fixing portion 22 can adjust the length of the screen 4 and detachably lock the end portion of the screen 4. A roller 15 that is rotatably supported by both end portions of the weight bar 5 is inserted into the lower end portion of the screen 4 that is suspended between the winding pipe 9 and the fixing portion 22. Thereby, the screen 4 is stretched based on the weight of the weight bar 5.

  By the way, in the case of such a roll screen that hangs down the double screen 4, the roller 15 provided on the weight bar 5 can be configured so that the lower end of the double screen is folded and smoothly moved. As shown in FIG. 2, it is preferable to provide a guide member 5b in contact with the screen 4 in the vicinity of the opening 5a of the weight bar 5 so that the opening width can be adjusted. In addition, as shown in FIG. 2, the guide member 5b preferably has a rounded surface so as to reduce the rubbing noise with the screen 4. Thereby, smooth operation | movement is realizable, avoiding the enlargement of the weight bar 5. FIG. However, for example, if the double screen 4 is made of a material made of a chargeable material (for example, polyester) and the guide member 5b is also made of a chargeable material (especially if the charge-carrying polarity is different), the screen 4 and the guide Contact (rubbing) with the member 5b may cause static frictional charge or peeling charge, and the screen 4 or the guide member 5b may be charged with static electricity. Such electrostatic charging, for example, adsorbs dust or the like in the air, and as a result, its smooth operation and fluctuations in the proximity and separation between the front and rear screens are caused, thereby impairing the design. Therefore, it is desirable that both the screen 4 and the guide member 5b are formed of an antistatic material, but the formation of static electricity can be suppressed by forming either one of them with an antistatic material. In particular, in consideration of increasing the degree of freedom of the material of the screen 4 to be used, it is desirable to form the guide member 5b with an antistatic material. Such an antistatic material may be an existing material that can be molded and has an antistatic effect, such as a resin material containing a conductivity imparting material such as carbon or a conductive filler. In addition, when the conductivity imparting material is not used and the screen 4 is made of polyester, it is also good for suppressing static electricity to form the guide member 5b with PET resin.

  Therefore, when the operation cord 3 is operated to rotate the winding pipe 9 in the screen winding direction, the weight bar 5 is raised, and when the winding pipe 9 is rotated in the screen unwinding direction, the weight bar 5 is lowered.

  Further, in the take-up pipe 9, a spring motor that reduces the operating force when the screen 4 is wound is housed on the left end side, and a stopper device that prevents the weight of the screen 4 from falling down is housed on the right end side. Not shown).

  Since the screen 4 has a transmission portion 4b that partially transmits light and a light-shielding portion 4a that blocks light alternately formed in a stripe pattern, the screen 4 is supported in a suspended state in a state where the screen 4 is overlapped. The amount of light collected can be adjusted by moving the front and rear screens 4 in the up-and-down direction by adjusting the operation code 3 and adjusting the overlapping state of the transmission part 4b and the light-shielding part 4a. It should be noted that the pitch at which the transmissive portions 4b that partially transmit light and the light-shielding portions 4a that block light are alternately formed in stripes can be arbitrarily determined.

  By the way, in the roll screen 1 according to the present invention, as will be described in detail later, as shown in FIG. 2, the operation unit 6 is provided to be rotatable relative to the winding pipe 9 and the support members 2a and 2b. At the time of operation by the operation code 3, a pendulum operation is performed. A support portion 21 that supports a base shaft of the movable fin 7, which will be described in detail later, is provided at the bottom of the mounting frame 2. Preferably, the length of the movable fin 7 in the vertical direction is long enough to close the gap between the mounting frame 2 and the winding pipe 9. Thus, the movable fin 7 is provided over substantially the entire length in the longitudinal direction (left and right rear) of the mounting frame 2 and is supported so as to be relatively rotatable in the front-rear direction with respect to the mounting frame 2.

  In addition, as shown in FIG. 2, in the state where the weight bar 4 is at the lower limit position, the lower ends of the double screens 4 are not in contact with each other, and the upper ends of the double screens 4 are in contact with each other, or It is closer than the bottom. When the pendulum operation of the operation unit 6 is in a stationary state and the upper end of the double screen 4 is in contact with or in proximity, the tip of the movable fin 7 is attached obliquely above the take-up pipe 9. It is configured to contact the screen 4 on the side supported by the frame 2.

  Then, the projection piece 61 of the operation unit 6 presses the auxiliary member 71 of the fin cover 72 provided at the end of the movable fin 7 in the left-right direction in accordance with the pendulum operation of the operation unit 6. Actuate 4 intervals apart. The auxiliary member 71 can be attached to and detached from the fin cover 72, and is required for the pressing according to the length of the movable fin 7 so that the position of the power point by the pendulum operation of the operation unit 6 can be adjusted. The acting force can be changed. As described above, the movable fin 7 is configured as a shielding material interval adjusting mechanism that operates together with the fin cover 72 and the auxiliary member 71 thereof so that the interval between the double screens 4 is separated according to the pendulum operation of the operation unit 6. .

  That is, when there is no pendulum movement of the operation unit 6, not only when the upper ends of the double screens 4 are always in contact with each other with the weight bar 4 in the lower limit position, but also when they are not always in contact. In the stationary state, winding by the winding pipe 9 is performed, and the screen 4 may be rolled up and contacted. On the other hand, in the structure which concerns on this invention, since it operates so that the space | interval of the said double screen 4 may leave | separate by making the operation unit 6 perform a pendulum operation | movement, damage to the screen 4 by the said contact can be suppressed. In addition, since the pendulum operation | movement of the operation unit 6 is a non-operation | movement stationary state and the upper end of the said double screen 4 is contacting, since it can improve the shielding property when it makes a light-shielding state, it is preferable.

  In particular, the operation unit 6 includes first and second operation unit members 6a and 6b that receive and support an operation pulley 10 that hangs an endless operation cord 3 from both sides so as to be relatively rotatable. Provided. Further, the first cord guide member 6c for guiding the operation cord 3 hanging down from the operation pulley 10 for winding is suspended between the first and second operation unit members 6a and 6b, and the operation cord 10 is hung down for rewinding. A second code guide member 6d for guiding the operation code 3; The first and second code guide members 6c and 6d are respectively used as first code guide portions by using a code guide wall 64 positioned below between the first and second operation unit members 6a and 6b. A guide route as a guide route and a second code guide portion is formed, and the operation code is different from each other so that the endless operation cord 3 is guided from the position where the endless operation cord 3 is attached to the operation pulley 10 to the outdoor side rather than on the vertical line. 3 is guided.

(Operation unit and shielding material interval adjustment mechanism)
Hereinafter, with reference to FIG. 3 and FIG. 4, a specific configuration of the operation unit 6 and its periphery will be described. FIG. 3 is an exploded perspective view showing a schematic configuration around the operation unit 6 in the roll screen according to the first embodiment of the present invention. FIG. 4 is an exploded perspective view showing a detailed configuration of the operation unit 6.

  First, referring to FIG. 3, a support portion 21 that supports the base shaft of the movable fin 7 is provided at the bottom of the mounting frame 2. Accordingly, the movable fin 7 is provided over substantially the entire length in the longitudinal direction (left and right rear) of the mounting frame 2 and is supported so as to be relatively rotatable with respect to the mounting frame 2 in the front-rear direction.

  The operation unit 6 accommodates inside the first and second cord guide members 6c and 6d for guiding the operation cord 10 for hanging the endless operation cord 3 and the operation cord 3 hanging from the operation pulley 10. It is comprised from the two operation unit members 6a and 6b which are pinched | interposed and integrated with respect to 10 and integrated. The two operation unit members 6a and 6b can be fixed by using a mounting screw 60 for integration.

  The operation pulley 10 is provided with a through hole for using a fixed shaft 11 extending from the support member 2a as a rotation shaft. In addition, an unevenness for hooking the operation cord 3 is formed on the right end side of the operation pulley 10, and winding is performed on the left end side of the operation pulley 10 via a flange having a diameter larger than the outer periphery on which the operation cord 3 is hooked. A fitting portion 10 a that fits to the inner peripheral surface of the right end of the pipe 9 is provided. For this reason, the winding pipe 9 is rotatably supported by the support member 2a as the operation pulley 10 rotates.

  The screen 4 (not shown in FIG. 3) is suspended between the winding pipe 9 and the fixing portion 22 and is stretched based on the weight of the weight bar 5.

  The first and second code guide members 6c and 6d use the code guide wall 64 positioned below between the first and second operation unit members 6a and 6b to perform an endless operation during non-pendulum operation. The operation code 3 is guided along different guide routes so that the code 3 is guided from the position where the operation pulley 10 is mounted to the outdoor side rather than on the vertical line. In this example, the first and second code guide members 6c and 6d are configured to be detachable from the first and second operation unit members 6a and 6b. However, as shown in FIG. This is because when the right operation arranged on the right side is configured and when the operation unit 6 is configured with the left operation arranged on the left side, the same member can be used to change the arrangement.

  Thus, the operation unit 6 is provided so as to be rotatable relative to the take-up pipe 9 and the support members 2a and 2b.

  Then, the projection piece 61 of the operation unit 6 presses the auxiliary member 71 of the fin cover 72 provided at the end of the movable fin 7 in the left-right direction in accordance with the pendulum operation of the operation unit 6. Actuate 4 intervals apart. Although details of the auxiliary member 71 will be described later, the auxiliary member 71 can be attached to and detached from the fin cover 72. Thereby, the power point position by the pendulum operation of the operation unit 6 can be adjusted, and the acting force required for the pressing can be changed according to the length of the movable fin 7. Further, when the operation unit 6 is configured with the right operation arranged on the right side as illustrated, the auxiliary member 71 can be attached to the fin cover 72 on the right end side of the movable fin 7 and the operation unit 6 is arranged on the left side. When configured by the left operation, the auxiliary member 71 can be attached to the fin cover 72 on the left end side of the movable fin 7.

  In this manner, the movable fin 7 is configured as a shielding material interval adjusting mechanism that operates together with the fin cover 72 and the auxiliary member 71 thereof so that the interval between the double screens 4 is separated according to the pendulum operation of the operation unit 6. The

  Next, the detailed structure of the first and second operation unit members 6a and 6b and the first and second code guide members 6c and 6d constituting the operation unit 6 will be described with reference to FIG. As shown in FIG. 4, each of the first and second operation unit members 6a and 6b is formed of a substantially plate member having a generally inverted saddle-shaped outer shape, and accommodates the operation pulley 10 on the inside and can be relatively rotated. It engages so that it can be supported. For this reason, the first and second operation unit members 6a and 6b are formed with substantially circular opening support portions 65f and 66f in accordance with the outer diameters of the operation pulleys 10 to be supported, respectively. In other words, a protrusion protruding in a cylindrical shape is formed on the right end side of the operation pulley 10 (not shown), and the first operation unit member 6a has a protrusion of the protrusion to be engaged with the protrusion. The opening support portion 65f is formed in a round hole shape slightly larger in diameter than the outer diameter. The second operation unit member 6b has a slightly larger diameter than the outer diameter of the flange so as to engage with a flange having a diameter larger than the outer circumference around which the operation cord 3 is hung on the left end side of the operation pulley 10. An opening support portion 66f is formed in a round hole shape.

  Above the first and second operation unit members 6a and 6b, the pendulum operation is integrated with each other above the horizontal line passing through the axial center of the operation pulley 10 in a non-operating state (stationary state). In order to form a semicircular cross-sectional shape, cord cover portions 62 and 63 projecting in the engaging direction are formed. Further, claw portions 62a are formed at two locations on the inner wall of the cord cover portion 62, and the cord cover portion 63 is provided with fitting holes 63a at two locations so as to be able to be fitted to the claw portions 62a. The cover portions 62 and 63 are overlapped and integrally fitted to form a cord cover, whereby the operation cord 3 to be hung can be prevented from coming off the operation pulley 10 and causing slippage.

  In addition, a substantially inverted trapezoidal protruding piece 61 is formed on the top of the first operation unit member 6a, and a concave groove 61a having a substantially square and stepped recess is formed in the protruding piece 61. And the convex piece 63b which protrudes in a substantially square step shape is formed in the top part of the 2nd operation unit member 6b so that it may be engaged with this recessed groove 61a and buried.

  On the other hand, a substantially rectangular box-shaped code guide wall 64 protruding in the engaging direction is formed below the second operation unit member 6b, and above the code guide wall 64 below the first operation unit member 6a. An engaging piece 65e having a substantially I-shaped cross section protruding in the engaging direction is provided so as to engage with the inner groove 66e provided in the inner groove 66e.

  Further, the screw hole 65d provided below the first operation unit member 6a and the screw hole 66d provided below the code guide wall 64 of the second operation unit member 6b are provided in the first and second operation units. In order to engage and fix the members 6a and 6b, they are provided so that they can be fixed using the mounting screws 60 (see FIG. 3).

  And the 1st operation unit member 6a is formed with the support bar 65b which protrudes in an engagement direction in order to support the 1st and 2nd code guide members 6c and 6d, respectively, and each support bar 65b The support rod receiving portions 66b provided at two positions on the second operation unit member 6b can be engaged with each other through the through holes 67b and 68b provided on the first and second code guide members 6c and 6d, respectively. Yes.

  In addition, the first operation unit member 6a has engagement grooves 65a and 65c that are capable of supporting the first and second code guide members 6c and 6d in accordance with their respective shapes in a symmetrical positional relationship in the front-rear direction. Similarly, the second operation unit member 6b has engaging grooves 66a and 66c for supporting the first and second code guide members 6c and 6d in accordance with their respective shapes. They are provided at two locations with a symmetrical positional relationship in the front-rear direction.

  As shown in the drawing, the first code guide member 6c has a substantially triangular main body 67 having a wide width. The first code guide member 6c has a through hole 67b penetrating in the column direction and engaging grooves 65c and 66c so that the support rod 65b can be inserted. Are provided so as to be able to engage with each other on both sides of the substantially triangular surface.

  As shown in the drawing, the second code guide member 6d has a vertically long and narrow substantially triangular column-shaped main body 68, and a through hole 68b penetrating in the column direction so that the support bar 65b can be inserted, and an engagement groove 65a. , 66a are provided so as to be able to engage with each other on both sides of the substantially triangular surface.

  Therefore, the first and second code guide members 6c and 6d can be mounted with their arrangements changed back and forth with respect to the first and second operation unit members 6a and 6b.

  The first and second code guide members 6c and 6d operate the endless operation cord 3 using the code guide wall 64 positioned below between the first and second operation unit members 6a and 6b. The operation cord 3 is guided along different guide routes so as to guide the pulley 10 from the hanging position to the outdoor side rather than on the vertical line.

  More specifically, the operation of the operation unit 6 will be described with reference to FIG. First, referring to FIG. 5A, the operation unit 6 is supported so as to be rotatable relative to the operation pulley 10 (and the winding pipe 9), and the lower limit position, the intermediate position, and the upper limit position of the weight bar 5. At each stationary time, torque acts on the operation unit 6 in the direction in which the front and rear screens 4 are in close contact with each other due to its own weight (weight of the screen 4, the weight bar 5, etc.). As a result, the operation cord 3 is hung on the basis of the first and second code guide members 6c and 6d.

  At this stationary time, when the weight bar 5 is at the lower limit position, or when the screen 4 is wound around the winding pipe 9 at a predetermined winding diameter at the intermediate position and the upper limit position of the weight bar 5, The double screen 4 is stabilized at a position where the distance between the double screens 4 is close or close (the distance d1 between the double screens 4). Therefore, the transmissive portion 4b and the light shielding portion 4a of the double screen 4 can be shifted to be in a semi-transmissive state, or the transmissive portion 4b and the light shielding portion 4a of the screen 4 can be brought into a light shielding state, In particular, it is possible to improve the light shielding property when the light shielding state is set. In addition, since the fixing | fixed part 22 of the attachment frame 2 of this embodiment is comprised so that the length of the screen 4 may be adjusted, it is set as a shielding state, for example when the weight bar 5 exists in a lower limit position. The length of the screen 4 is easy to adjust. Further, the movable fin 7 is made of a metal material such as aluminum or a non-translucent resin material, thereby shielding external light that can enter from the gap between the mounting frame 2 and the winding pipe 9. You can also

  Next, referring to FIG. 5B, for example, when the operation cord 3 is operated so as to raise the weight bar 5 from the state where the weight bar 5 is at the lower limit position or the intermediate position, the screen 4 is wound around the winding pipe 9. Taken. At this time, the operation cord 3 comes into contact with the second code guide member 6d on the indoor side and a clockwise torque is applied to the operation unit 6, so that the operation unit 6 operates as a pendulum, and the projecting piece 61 side of the operation unit member 6a The end rotates the movable fin 7 and presses the screen 4 on the outdoor side. For this reason, the interval d2 when operating the double screen 4 is configured to be larger than the interval d1 when stationary. Accordingly, the double screen 4 is not rubbed during the ascending operation, or even if the friction is caused, the screen 4 is not damaged because it partially moves during the ascending / descending operation or the frictional force is reduced.

  Similarly, referring to FIG. 5C, for example, when the operation cord 3 is operated so as to lower the weight bar 5 from the state where the weight bar 5 is at the intermediate position or the upper limit position, the coil is wound around the winding pipe 9. The screen 4 is lowered. At this time, the operation cord 3 comes into contact with the outdoor-side cord guide portion 6c and a clockwise torque is applied to the operation unit 6, whereby the operation unit 6 performs a pendulum operation, and the side end portion of the protruding piece 61 of the operation unit member 6a. Rotates the movable fin 7 and presses the screen 4 on the outdoor side. For this reason, the interval d3 when operating the double screen 4 is configured to be larger than the interval d1 when stationary. Accordingly, the double screen 4 is not rubbed during the lowering operation, or even if the friction is caused, the screen 4 is not damaged because it partially moves during the ascending / descending operation or the frictional force is reduced.

  Even if friction occurs in a part near the upper limit where the cloth of the screen 4 is rolled up, it acts in a direction in which the frictional force is reduced.

  In the ascending operation, the guide path slightly larger than the outer shape of the ball portion 3a of the operation cord 3 between the second code guide member 6d on the indoor side and the code guide wall 64 is at least two balls continuous at a predetermined pitch. Since the portion 3a is formed so as to abut against the second code guide member 6d, rattling in the operation unit 6 during operation of the operation cord 3 is suppressed, and interference between the ball portion 3a and the second code guide member 6d is suppressed. It is possible to reduce the operation sound that can be generated by the operation. Further, at the time of the lowering operation, at least two ball portions 3a continuous at a predetermined pitch are formed so as to abut on the first code guide member 6c, and thus may be caused by interference between the ball portion 3a and the first code guide member 6c. Operation sound can be reduced. Further, since a guide path sufficiently larger than the outer shape of the ball portion 3a of the operation cord 3 is secured between the first code guide member 6c on the outdoor side and the code guide wall 64, a reverse pendulum operation and interference It is difficult for the operation sound that may occur in

  That is, in the operation unit 6 according to the present invention, as shown by the broken lines A and B in FIG. 6A, the endless operation cord 3 is attached to the operation pulley 10 during the non-pendulum operation (at rest). The operation cords 3 are configured to be guided to the outdoor side rather than on the vertical line from each other, and are guided by different guide routes. Therefore, the operation cords 3 are not limited to the case where the endless operation cords 3 are pulled forward. Even if it is pulled downward, the pendulum operates reliably, improving its operability. Further, as indicated by the opening angle θ in FIG. 6B, the outlet of the operation cord 3 of the operation means that hangs down the outdoor side passes through the center of the operation pulley 10 during the non-pendulum operation (at rest). Since it opens from the lower side than the horizontal line, it is possible to suppress the reverse pendulum movement by the operation cord 3 during the lowering operation that is easy to draw to the outdoor side. Further, it is difficult for the operation sound that may be generated by the interference between the operation pulley 10 and the operation unit 6 to occur.

  In addition, the first and second code guide members 6c and 6d can be integrated with any one of the first and second operation unit members 6a and 6b, but are configured to be detachable. Thus, as shown in FIG. 7A, when the operation unit 6 is configured with a left operation arranged on the left side, and as shown in FIG. 7B, the operation unit 6 is configured with a right operation arranged on the right side. In any case, the first code guide member 6c can be attached to the outdoor side and the second code guide member 6d can be attached to the indoor side, so that the same member can be rearranged. By adopting such a member configuration that enables relocation, the part management burden of the operation unit 6 can be reduced, and the cost can be reduced.

  Further, the movable fin 7 is configured such that the auxiliary member 71 is a separate member that is detachable from the fin cover 72 provided at the end in the left-right direction. The position of the power point by the pendulum movement of the operation unit 6 can be adjusted by the change, and the adaptability and commonality to various forms of the roll screen can be enhanced. For example, it is possible to change the acting force required to press the pendulum operation of the operation unit 6 according to the length of the movable fin 7 in the vertical direction so as to reduce the operation force.

  In addition, the movable fin 7 may be formed by integrating the fin cover 72 and the auxiliary member 71, but the shape of the fin cover 72 installed at the end in the left-right direction is made common so that the auxiliary member 71 As a separate member, it is preferable that the fin cover 72 is provided so as to be detachable from the end portion in the left-right direction. Thereby, the part management burden of the fin cover 72 and the auxiliary member 71 can be reduced, and the cost can be reduced.

  More specifically, an example in which the fin cover 72 is provided on the movable fin 7 with the auxiliary member 71 as a separate member is shown in FIG. FIG. 8A is an exploded perspective view illustrating the movable fin 7, and FIG. 8B is a perspective view illustrating a state in which the auxiliary member 71 is assembled to the movable fin 7 and the fin cover 72 as a separate member. Here, the synthetic resin fin cover 72 and the auxiliary member 71 are described as an example of the aluminum movable fin 7, but the movable fin 7 may also be a synthetic resin.

  As shown in FIG. 8A, the fin cover 72 is configured to be attachable to both the left and right ends of the movable fin 7, and can be integrated by fitting the auxiliary member 71 as a separate member. . The fin cover 72 is formed of a main body plate 72b having a substantially square cross-sectional shape having a substantially rhomboid plate piece 72a on its side. The substantially rhomboid plate piece 72 a has a screw hole 72 c formed at substantially the center thereof, and can cover one end of the movable fin 7. Further, a notch 72d is provided at the top of the main body plate 72b, whereby the base shaft 7a supported by the support portion 21 provided at the bottom of the mounting frame 2 can be protruded from the main body plate 72b. A fin cover 72 is attached to one end of the movable fin 7 and can be fixed by a fixing screw 73 screwed into the concave portion 7b of the movable fin 7 through the screw hole 72c.

  Further, the body plate 72b of the fin cover 72 is provided with an opening 72e so that the auxiliary member 71 can be mounted so as to expose the abutted portion 71a of the auxiliary member 71 having a substantially cross-sectional shape. Yes. The auxiliary member 71 is formed with a bifurcated leg 71b and can be elastically deformed in the vertical direction. The leg 71b is formed with a projecting portion 71c projecting in the left-right direction, and the projecting portion 71c is positioned in contact with the inner wall 72f around the opening 72e of the fin cover 72. Then, the fin cover 72 is provided with claw portions 72g that allow the leg portion 71b of the auxiliary member 71 that is elastically deformed and attached from above and below to be held in this positioned state. It has been. FIG. 8B shows a state in which the auxiliary member 71 is assembled to the movable fin 7 and the fin cover 72 as a separate member.

  Accordingly, the movable fin 7 can be configured so that the shape of the fin cover 72 provided at the end in the left-right direction is made common, and the auxiliary member 71 can be attached to and detached from any fin cover 72.

  The vertical length of the movable fin 7 depends on the structure of the mounting frame 2 in the roll screen 1 to be applied, the winding diameter of the winding pipe 9, or the distance between the mounting frame 2 and the winding pipe 9. The cross-sectional shape is not particularly limited. However, for the purpose of reducing the component management burden of the fin cover 72 and the auxiliary member 71 and thus reducing the cost, for example, as shown in FIG. 9A, the form of the movable fin 7 described above (vertical length a) In addition, the form of the movable fin 7 as shown in FIG. 9B (vertical length b <a) is also prepared, and the number of types including the presence / absence of application of the auxiliary member 71 can be changed to various roll screens 1. It can be operated as applicable. In addition, although the example which has the cross-sectional shape bent comparatively largely is shown in the form of the movable fin 7 as shown in FIG.9 (b), it is not necessary to limit to this.

  As described above, in the roll screen 1 of the present embodiment, the double screen 4 is reliably separated during the lifting operation, and the frictional force of the double screen is eliminated or the relative movement is reduced. There is no risk of hurting. When the screen is stationary, the distance between the double screens 4 can be close or in close contact. In the screen 4 having the transmissive part 4b and the light shielding part 4a, the transmissive part and the light shielding part are brought into a light-shielded state. The light-shielding property can be improved.

  In particular, the first and second code guide members 6c and 6d use the code guide wall 64 positioned below between the first and second operation unit members 6a and 6b to perform non-pendulum operation (at rest). It is possible to improve the operability of the operation cord 3 by guiding the endless operation cord 3 from the position where the endless operation cord 3 is attached to the operation pulley 10 to the outdoor side rather than on the vertical line by using different guide paths. it can.

  Further, the operation unit 6 is configured so that the outlet of the operation cord 3 of the operation means hanging down from the outdoor side opens below the horizontal line passing through the axial center of the operation pulley 10 during non-pendulum operation (at rest). Thus, the reverse pendulum movement can be suppressed, and the operation sound that can be generated by the interference between the operation pulley 10 and the operation unit 6 at that time can be hardly generated.

  Further, the movable fin 7 can be adjusted in the position of the force point by the pendulum operation of the operation unit 6 by the detachable auxiliary member 71 so as to change the acting force required for the pressure related to the pendulum operation according to the length in the vertical direction. By configuring, the operation force can be reduced.

  In addition, by configuring the operation unit 6 and the movable fin 7 with members that allow the right side operation and the left side operation to be rearranged, it is possible to reduce the part management burden and to reduce the cost.

  Further, the movable fin 7 has a length sufficient to block the gap between the mounting frame 2 and the take-up pipe 9, thereby preventing light leakage from the gap regardless of the light shielding property of the screen 4. It becomes possible.

[Second Embodiment]
Next, with reference to FIG. 10, the structure of the roll screen 1 of 2nd Embodiment by this invention is demonstrated. In FIG. 10, the same components as those in the first embodiment are denoted by the same reference numerals.

  In the first embodiment, an example in which a single screen 4 is folded into a double screen 4 has been described. However, the gap between the single screen 4 and the mounting frame 2 and the winding pipe 9 is blocked. A light shielding member 4S having a sufficient length can be used as a double shielding material, which will be described as a second embodiment.

  For example, when the movable fin 7 is made of a light-transmitting synthetic resin, or when it is made of a metal material, an opening is provided to reduce its weight, or the mounting frame 2 and the winding pipe 9 There is a possibility that light leaks from the gap between the mounting frame 2 and the take-up pipe 9 when the length is insufficient to close the gap. At this time, the light leakage preventing member 4S having a length sufficient to block the gap between the mounting frame 2 and the take-up pipe 9 is suspended from the fixing portion 22 of the mounting frame 2, for example, as shown in FIG. Thus, the light shielding property can be improved.

  As shown in FIG. 10, even when a double shielding material is configured by one screen 4 and the light leakage prevention member 4S, as described in the first embodiment, the operation unit 6 and the movable fin 7 By configuring the screen 4, the screen 4 and the light leakage prevention member 4 </ b> S are reliably separated when the screen 4 is moved up and down, and the frictional force of the double shielding material is eliminated or reduced and the relative movement is performed. And the risk of damaging the light leakage preventing member 4S can be eliminated. Further, when stationary, the distance between the screen 4 and the light leakage prevention member 4S can be close or in close contact, and the light shielding property can be improved. Furthermore, it is possible to prevent the light leakage prevention member 4S formed of cloth or the like from rising during the lifting / lowering operation of the screen 4.

[Other Embodiments]
As a modification of the first embodiment or the second embodiment, for example, without using a light leakage prevention member 4S as shown in FIG. The movable fin 7 can be configured as a light leakage prevention member for the purpose of blocking light leakage from the gap between the two.

  Therefore, in each of the above-described embodiments, light leakage is suppressed between the winding pipe 9 and the mounting frame 2 in the roll screen that suspends the single screen 4, not only when the double screen 4 is suspended. When the movable fin 7 is provided, the operation unit 6 is operated as a pendulum so that the screen 4 and the movable fin 7 do not come into contact with each other when the screen 4 is wound or unwound by the winding pipe 9. 7 can eliminate the risk of damaging the screen 4.

  Further, when the operation unit 6 is in a stationary state in which the pendulum operation is not activated, the endless operation cord 3 is configured to guide the end of the operation cord 3 from the position where the operation pulley 10 is hooked to the outdoor side rather than on the vertical line. In order to suppress the operation, even when light leakage may occur due to, for example, a reverse pendulum operation, it can be more reliably prevented.

  Furthermore, regarding each embodiment mentioned above, by providing the fin cover 72 in the both ends of the left-right direction of the movable fin 7, for example, both ends of the movable fin 7 can be generated by edge cutting when the movable fin 7 is formed of a metal material. Since the cut surface can be covered with the synthetic resin fin cover 72, the safety of the movable fin 7 that operates in accordance with the pendulum operation of the operation unit 6 can be enhanced.

  Further, as described above, the movable fin 7 is provided with a detachable auxiliary member 71 that can adjust the position of the power point by the pendulum operation of the operation unit 6, so that the movable fin 7 can be applied to various types of roll screens. 7 and the fin cover 72 can be used as a shared member, which contributes to a reduction in cost. In particular, the auxiliary member 71 is configured to be detachable by being fitted into the opening 72e of the fin cover 72, so that convenience as a shared member can be enhanced.

  Further, in the example of the first embodiment described above, as the double screen 4 in which one screen is folded, the transmissive portions 4b that partially transmit light and the light shielding portions 4a that block light are alternately arranged in stripes. Although the example formed is explained, for example, it may be a polka dot pattern and the like, and it is not necessary to form the transmissive portions 4b and the light shielding portions 4a alternately. This is effective in producing an effect.

  Further, various shapes such as the shape of the operation unit 6 and the movable fin 7 or the shape of the fixed portion 22 of the mounting frame 2 can be used as long as the operation and effect of the present invention are produced. Further, an urging means such as a spring for assisting a pendulum operation that moves in a direction in which the screen 4 is separated may be further provided in order to reliably separate the screen 4 during operation.

  Therefore, although the present invention has been described with examples of specific embodiments, the present invention is not limited to the examples of the above-described embodiments, and various modifications can be made without departing from the technical idea thereof.

  According to the present invention, the double shielding material can be reliably separated during the lifting operation, which is useful for a roll screen using a double shielding material.

DESCRIPTION OF SYMBOLS 1 Roll screen 2 Mounting frame 2a, 2b Support member 3 Operation code 4 Screen 4a Light-shielding part 4b Transmission part 5 Weight bar 5a Opening part of weight bar 5b Guide member 6 Operation unit 6a 1st operation unit member 6b 2nd operation unit member 6c First code guide member 6d Second code guide member 7 Movable fin 8 Bracket 9 Winding pipe 10 Operation pulley 11 Fixed shaft 21 Support portion 22 Fixed portion 61 Projection piece of operation unit 71 Auxiliary member 72 Fin cover

Claims (19)

A roll screen having a double shielding material,
Winding means for supporting one of the shielding members so as to be wound;
Fixing means for supporting the other shielding material;
An operation pulley that hangs an endless operation cord so that the winding means can be rotated;
A shielding material interval adjusting means which operates so that the interval between the double shielding materials is separated according to the pendulum operation;
The roll screen is characterized in that the operation means is configured to guide the endless operation cord from the position where the endless operation cord is attached to the operation pulley to the outdoor side rather than on the vertical line when the pendulum operation is not activated.   The roll screen according to claim 1, wherein the double shielding material is formed by folding a single screen.   2. The roll screen according to claim 1, wherein the double shielding material is formed with the one shielding material as one screen and the other shielding material as a light leakage prevention member.   2. The exit of the operation cord hanging from the outdoor side of the operation means is opened from below from a horizontal line passing through the axial center of the operation pulley when the pendulum operation is not activated. The roll screen as described in any one of -3.   The operation means includes a first code guide portion that guides an operation cord that hangs down for winding from an operation pulley, and a second cord guide portion that guides an operation cord that hangs down from the operation pulley for rewinding, The roll according to any one of claims 1 to 4, wherein the first code guide unit and the second code guide unit are configured to guide the operation code through different guide routes. screen.   The shielding material interval adjusting means includes a movable fin that presses the other shielding material so that the distance between the double shielding materials is separated by a pendulum operation of the operation means, and a base axis of the movable fin is fixed to the fixing means The roll screen according to claim 1, wherein the roll screen is provided.   The roll screen according to claim 6, wherein the movable fin has a length sufficient to close a gap between the fixing unit and the winding unit.   The movable fin is configured to be capable of adjusting a position of a force point by a pendulum operation of the operation means by a detachable auxiliary member so as to change an acting force required for the pressing according to the length. The roll screen according to claim 7.   The first code guide part and the second code guide part are formed by using a member that can be attached to and detached from the holding member, and the right side operation and the left side operation with respect to the winding means are changed by changing the arrangement of the members. The roll screen according to claim 5, wherein the roll screen is configured to be possible.   The roll screen according to claim 8 or 9, wherein the auxiliary member is configured to be rearranged according to the right side operation and the left side operation.   The operation cord is composed of a ball chain in which a plurality of ball portions are connected. The first code guide portion and the second code guide portion are guided by at least two ball portions continuous at a predetermined pitch in contact with each other during the operation. The roll screen according to claim 1, wherein the roll screen is configured as described above. A roll screen having a shielding material,
Winding means for suspending and supporting the shielding material so as to be wound;
Fixing means for supporting the winding means;
An operation pulley that hangs an endless operation cord so that the winding means can be rotated;
A movable fin that is pivotally supported by the fixing means so as to be able to rotate according to the pendulum operation, and that can block light leaked from a gap between the winding means and the fixing means;
The roll screen is characterized in that the operation means is configured to guide the endless operation cord from the position where the endless operation cord is attached to the operation pulley to the outdoor side rather than on the vertical line when the pendulum operation is not activated. A roll screen having a shielding material,
Winding means for suspending and supporting the shielding material so as to be wound;
Fixing means for supporting the winding means;
A movable fin capable of blocking light leaked from a gap between the winding means and the fixing means;
A roll screen characterized in that fin covers are provided at both ends in the left-right direction of the movable fin. An operation pulley that hangs an endless operation cord so that the winding means can be rotated, and further includes an operation means that performs a pendulum operation when operated by the endless operation cord;
The roll screen according to claim 13, wherein the movable fin is provided with a detachable auxiliary member capable of adjusting a power point position by a pendulum operation of the operation means.   15. The roll screen according to claim 14, wherein the auxiliary member is configured to be detachable by being fitted into openings of fin covers respectively provided at both left and right ends of the movable fin. . A roll screen having a shielding material,
Winding means for suspending and supporting the shielding material so as to be wound;
Fixing means for supporting the winding means;
An operation pulley that hangs an endless operation cord so that the winding means can be rotated; and an operation means that performs a pendulum operation when operated by the endless operation cord;
The roll screen is characterized in that the operation means is configured as an operation unit that houses a plurality of code guide members that can guide the endless operation code through an asymmetric guide path in the front-rear direction. The plurality of code guide members are configured as two code guide members,
The roll screen according to claim 16, wherein the operation unit includes two members that can accommodate the two code guide members. The winding means suspends and supports one end of the screen formed by folding a screen with a weight member so that the screen can be wound, and the fixing means supports the other end of the screen. Configured,
In the state where the weight member is in the lower limit position, the lower ends of the double shielding materials are not in contact with each other, and the upper ends of the double shielding materials are in contact with each other or closer to the lower ends. The roll screen according to any one of claims 1 to 17. The winding means suspends and supports one end of the screen formed by folding a screen with a weight member so that the screen can be wound, and the fixing means supports the other end of the screen. Configured,
When the upper end of the double shielding material is in contact with or close to the pendulum movement of the operation means in a stationary state, the tip of the movable fin is supported by the fixing means obliquely above the winding means. The roll screen according to claim 1, wherein the roll screen is configured to abut against a shielding material.